Water and It's Importance

Water and It's Importance

ppt 1

Cloud formation

• When the temperature of air increases, it expands(the particles move away from one another).

• This makes the air lighter and it rises in the atmosphere, taking water vapour with it.

• As the air rises, it begins to cool.

Cloud formation continuation

• The water vapour condenses on dust particles present in the atmosphere to form millions of tiny droplets.

• Tiny ice crystals will be formed if it is very cold.

• This cluster of tiny water droplets floating in air is what we call a cloud.

Water Cycle

• Water droplets in the clouds keep bumping against one another, and sometimes stick to form bigger drops.

• When these drops become too heavy to float in the air, they drop down back to the Earth as rain.

Water Cycle continuation

• The water that comes down as rain, in time, evaporates and goes up to form clouds again.

• This leads to the formation of a cycle, known as the water cycle.